Generic source of perpendicular anisotropy in amorphous rare-earth transition-metal films

Research output: Contribution to journalArticle

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Abstract

We show that the magnetic dipolar energy of antiparallel dipoles in the surface layers contributes to the intrinsic perpendicular anisotropy in amorphous rare-earth transition-metal films. The volume anisotropy energy density Ku of this contribution depends inversely on the thickness of the film. For an amorphous GdCo film with a thickness of 1000 the calculated Ku is on the order of 103 104 ergs cm3. Dependence of Ku on temperature and atomic concentration is also calculated.

Original languageEnglish (US)
Pages (from-to)1086-1089
Number of pages4
JournalPhysical Review Letters
Volume66
Issue number8
DOIs
StatePublished - 1991

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metal films
rare earth elements
transition metals
anisotropy
surface layers
flux density
dipoles
temperature
energy

ASJC Scopus subject areas

  • Physics and Astronomy(all)

Cite this

Generic source of perpendicular anisotropy in amorphous rare-earth transition-metal films. / Fu, Hong; Mansuripur, Masud; Meystre, Pierre.

In: Physical Review Letters, Vol. 66, No. 8, 1991, p. 1086-1089.

Research output: Contribution to journalArticle

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